Pump valve



June 19, 1934. J. w. ROBl-SCH PUMP VALVE Filed Aug. 7, 1933 INVENTOR BY 4/ jm% ATTO R N EY Patented June 19, 1934 UNITED STATES PATENT OFFICE 1 Claim.

vision of a float so connected to the valve and operating in the water flow of the system between the pump and the water source that the valve will be automatically and positively seated during the discontinuance of the flow of the water or the stoppage of the water and. will open said valve by the suction of the pump and thereby assure the storage tank of the system of receiving proper portions of air and water to cause efficient operation of the system at all times.

With these and other objects in view this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side elevation, partly in section, illustrating an automatic water system with the valve applied thereto and constructed in accordance with my invention.

Figure 2 is a vertical sectional view illustrating a valve.

Figure 3 is a vertical sectional view illustrating the means of preventing the valve from being turned by the action of the float.

Figure 4 is a sectional view taken on the line 4-4 of Figure 2.

Figure 5 is a similar View taken on the line 5--5 of Figure 2.

Referring in detail to the drawing, the automatic water system, as shown in Figure 1, consists of a compression tank 1 having an outlet 2 adapted for connection to the plumbing fixtures of a dwelling or house. A pump 3 is connected with the tank 1, as shown at 4, and is driven by an electric motor 5. The motor is adapted to be started and stopped by the amount of water contained within the compression tank, this means being of any well known or conventional type. The intake port of the pump 3 is connected to a pipe 6, the latter having a vertical rise 7 in which is positioned a valve 8 forming the subject matter of the present invention. The valve is connected to a pipe 9 entering a system or other water supply 10. The pump 3 is adapted to force water from the supply into the tank along with air, placing the water in the tank under pressure. The air is admitted to the pipe 6 with the water passing therethrough by the valve 8.

The valve 8 consists of a housing 11 of substantially T-shape, one port of which is connected to the vertical rise '7 of the pipe 6, while another port is connected to the pipe 9. The third or other port of the housing is closed by a removable plug 12 having a passage 13 therethrough and also a valve seat 14. A valve 15 is provided for the seat 14 and the stem 16 thereof extends exteriorly of the plug by way of the passage 13 and has threaded thereto an adjusting nut 17. Interposed between the seat 14 and the nut 17 is a coil spring 18 for the purpose of normally urging the valve in engagement with the-seat. By varying the position of the nut 17 on the stem, the spring may be adjusted. Formed integrally with the valve is a loop 19 extending through an eye 20 of a float rod 21. The float rod extends into the vertical rise of the pipe 6 and carries an elongated float 22 of any desired construction. The plug 12 below the seat 14 is provided with a threaded extension 23 to which a nut 24 is threaded. The nut 24 carries a foraminous cage 25 which extends into the vertical rise 7 of the pipe 6 and forms a closure for the float 22 to operate in.

During the operation of the pump 3, the float 22 descends by the suction from the pump and also the flow of water through the pipe 6 unseating the valve, allowing air to be drawn into the pipe 6 for passage into the tank 1 along with the water. As soon as the pump 3 stops, the float 22 rises in the water remaining in the vertical rise '7 and seats the valve, closing the vertical rise '7 to the atmosphere. A pin 26 is carried by the extension 23 and extends through the loop 19 for the purpose of preventing the valve from being rotated by the float when subjected to the flow of water through the pipe 6.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope of my invention, as claimed.

Having described the invention, I claim:

A breather valve comprising a housing having inlet and outlet ports, a plug carried by said housing and having a passage in communication with the atmosphere, a valve seat in said passage, a valve for said seat, a stem on the valve and extending through the passage exteriorly of the plug, an adjusting nut threaded to the stem, a coil spring between the nut and valve seat, a loop-shaped element formed on the valve, a float rod pivoted to the loop-shaped element, a float carried by said rod and a pin carried by the plug and extending through the loop-shaped element.

JOHN WM. ROBISCH. 

